1 /* 2 ad1816a.c - lowlevel code for Analog Devices AD1816A chip. 3 Copyright (C) 1999-2000 by Massimo Piccioni <dafastidio@libero.it> 4 5 This program is free software; you can redistribute it and/or modify 6 it under the terms of the GNU General Public License as published by 7 the Free Software Foundation; either version 2 of the License, or 8 (at your option) any later version. 9 10 This program is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 GNU General Public License for more details. 14 15 You should have received a copy of the GNU General Public License 16 along with this program; if not, write to the Free Software 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 18 */ 19 20 #include <linux/delay.h> 21 #include <linux/init.h> 22 #include <linux/interrupt.h> 23 #include <linux/slab.h> 24 #include <linux/ioport.h> 25 #include <sound/core.h> 26 #include <sound/tlv.h> 27 #include <sound/ad1816a.h> 28 29 #include <asm/io.h> 30 #include <asm/dma.h> 31 32 static inline int snd_ad1816a_busy_wait(struct snd_ad1816a *chip) 33 { 34 int timeout; 35 36 for (timeout = 1000; timeout-- > 0; udelay(10)) 37 if (inb(AD1816A_REG(AD1816A_CHIP_STATUS)) & AD1816A_READY) 38 return 0; 39 40 snd_printk("chip busy.\n"); 41 return -EBUSY; 42 } 43 44 static inline unsigned char snd_ad1816a_in(struct snd_ad1816a *chip, unsigned char reg) 45 { 46 snd_ad1816a_busy_wait(chip); 47 return inb(AD1816A_REG(reg)); 48 } 49 50 static inline void snd_ad1816a_out(struct snd_ad1816a *chip, unsigned char reg, 51 unsigned char value) 52 { 53 snd_ad1816a_busy_wait(chip); 54 outb(value, AD1816A_REG(reg)); 55 } 56 57 static inline void snd_ad1816a_out_mask(struct snd_ad1816a *chip, unsigned char reg, 58 unsigned char mask, unsigned char value) 59 { 60 snd_ad1816a_out(chip, reg, 61 (value & mask) | (snd_ad1816a_in(chip, reg) & ~mask)); 62 } 63 64 static unsigned short snd_ad1816a_read(struct snd_ad1816a *chip, unsigned char reg) 65 { 66 snd_ad1816a_out(chip, AD1816A_INDIR_ADDR, reg & 0x3f); 67 return snd_ad1816a_in(chip, AD1816A_INDIR_DATA_LOW) | 68 (snd_ad1816a_in(chip, AD1816A_INDIR_DATA_HIGH) << 8); 69 } 70 71 static void snd_ad1816a_write(struct snd_ad1816a *chip, unsigned char reg, 72 unsigned short value) 73 { 74 snd_ad1816a_out(chip, AD1816A_INDIR_ADDR, reg & 0x3f); 75 snd_ad1816a_out(chip, AD1816A_INDIR_DATA_LOW, value & 0xff); 76 snd_ad1816a_out(chip, AD1816A_INDIR_DATA_HIGH, (value >> 8) & 0xff); 77 } 78 79 static void snd_ad1816a_write_mask(struct snd_ad1816a *chip, unsigned char reg, 80 unsigned short mask, unsigned short value) 81 { 82 snd_ad1816a_write(chip, reg, 83 (value & mask) | (snd_ad1816a_read(chip, reg) & ~mask)); 84 } 85 86 87 static unsigned char snd_ad1816a_get_format(struct snd_ad1816a *chip, 88 unsigned int format, int channels) 89 { 90 unsigned char retval = AD1816A_FMT_LINEAR_8; 91 92 switch (format) { 93 case SNDRV_PCM_FORMAT_MU_LAW: 94 retval = AD1816A_FMT_ULAW_8; 95 break; 96 case SNDRV_PCM_FORMAT_A_LAW: 97 retval = AD1816A_FMT_ALAW_8; 98 break; 99 case SNDRV_PCM_FORMAT_S16_LE: 100 retval = AD1816A_FMT_LINEAR_16_LIT; 101 break; 102 case SNDRV_PCM_FORMAT_S16_BE: 103 retval = AD1816A_FMT_LINEAR_16_BIG; 104 } 105 return (channels > 1) ? (retval | AD1816A_FMT_STEREO) : retval; 106 } 107 108 static int snd_ad1816a_open(struct snd_ad1816a *chip, unsigned int mode) 109 { 110 unsigned long flags; 111 112 spin_lock_irqsave(&chip->lock, flags); 113 114 if (chip->mode & mode) { 115 spin_unlock_irqrestore(&chip->lock, flags); 116 return -EAGAIN; 117 } 118 119 switch ((mode &= AD1816A_MODE_OPEN)) { 120 case AD1816A_MODE_PLAYBACK: 121 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS, 122 AD1816A_PLAYBACK_IRQ_PENDING, 0x00); 123 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 124 AD1816A_PLAYBACK_IRQ_ENABLE, 0xffff); 125 break; 126 case AD1816A_MODE_CAPTURE: 127 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS, 128 AD1816A_CAPTURE_IRQ_PENDING, 0x00); 129 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 130 AD1816A_CAPTURE_IRQ_ENABLE, 0xffff); 131 break; 132 case AD1816A_MODE_TIMER: 133 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS, 134 AD1816A_TIMER_IRQ_PENDING, 0x00); 135 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 136 AD1816A_TIMER_IRQ_ENABLE, 0xffff); 137 } 138 chip->mode |= mode; 139 140 spin_unlock_irqrestore(&chip->lock, flags); 141 return 0; 142 } 143 144 static void snd_ad1816a_close(struct snd_ad1816a *chip, unsigned int mode) 145 { 146 unsigned long flags; 147 148 spin_lock_irqsave(&chip->lock, flags); 149 150 switch ((mode &= AD1816A_MODE_OPEN)) { 151 case AD1816A_MODE_PLAYBACK: 152 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS, 153 AD1816A_PLAYBACK_IRQ_PENDING, 0x00); 154 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 155 AD1816A_PLAYBACK_IRQ_ENABLE, 0x0000); 156 break; 157 case AD1816A_MODE_CAPTURE: 158 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS, 159 AD1816A_CAPTURE_IRQ_PENDING, 0x00); 160 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 161 AD1816A_CAPTURE_IRQ_ENABLE, 0x0000); 162 break; 163 case AD1816A_MODE_TIMER: 164 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS, 165 AD1816A_TIMER_IRQ_PENDING, 0x00); 166 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 167 AD1816A_TIMER_IRQ_ENABLE, 0x0000); 168 } 169 if (!((chip->mode &= ~mode) & AD1816A_MODE_OPEN)) 170 chip->mode = 0; 171 172 spin_unlock_irqrestore(&chip->lock, flags); 173 } 174 175 176 static int snd_ad1816a_trigger(struct snd_ad1816a *chip, unsigned char what, 177 int channel, int cmd, int iscapture) 178 { 179 int error = 0; 180 181 switch (cmd) { 182 case SNDRV_PCM_TRIGGER_START: 183 case SNDRV_PCM_TRIGGER_STOP: 184 spin_lock(&chip->lock); 185 cmd = (cmd == SNDRV_PCM_TRIGGER_START) ? 0xff: 0x00; 186 /* if (what & AD1816A_PLAYBACK_ENABLE) */ 187 /* That is not valid, because playback and capture enable 188 * are the same bit pattern, just to different addresses 189 */ 190 if (! iscapture) 191 snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG, 192 AD1816A_PLAYBACK_ENABLE, cmd); 193 else 194 snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG, 195 AD1816A_CAPTURE_ENABLE, cmd); 196 spin_unlock(&chip->lock); 197 break; 198 default: 199 snd_printk("invalid trigger mode 0x%x.\n", what); 200 error = -EINVAL; 201 } 202 203 return error; 204 } 205 206 static int snd_ad1816a_playback_trigger(struct snd_pcm_substream *substream, int cmd) 207 { 208 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 209 return snd_ad1816a_trigger(chip, AD1816A_PLAYBACK_ENABLE, 210 SNDRV_PCM_STREAM_PLAYBACK, cmd, 0); 211 } 212 213 static int snd_ad1816a_capture_trigger(struct snd_pcm_substream *substream, int cmd) 214 { 215 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 216 return snd_ad1816a_trigger(chip, AD1816A_CAPTURE_ENABLE, 217 SNDRV_PCM_STREAM_CAPTURE, cmd, 1); 218 } 219 220 static int snd_ad1816a_hw_params(struct snd_pcm_substream *substream, 221 struct snd_pcm_hw_params *hw_params) 222 { 223 return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)); 224 } 225 226 static int snd_ad1816a_hw_free(struct snd_pcm_substream *substream) 227 { 228 return snd_pcm_lib_free_pages(substream); 229 } 230 231 static int snd_ad1816a_playback_prepare(struct snd_pcm_substream *substream) 232 { 233 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 234 unsigned long flags; 235 struct snd_pcm_runtime *runtime = substream->runtime; 236 unsigned int size, rate; 237 238 spin_lock_irqsave(&chip->lock, flags); 239 240 chip->p_dma_size = size = snd_pcm_lib_buffer_bytes(substream); 241 snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG, 242 AD1816A_PLAYBACK_ENABLE | AD1816A_PLAYBACK_PIO, 0x00); 243 244 snd_dma_program(chip->dma1, runtime->dma_addr, size, 245 DMA_MODE_WRITE | DMA_AUTOINIT); 246 247 rate = runtime->rate; 248 if (chip->clock_freq) 249 rate = (rate * 33000) / chip->clock_freq; 250 snd_ad1816a_write(chip, AD1816A_PLAYBACK_SAMPLE_RATE, rate); 251 snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG, 252 AD1816A_FMT_ALL | AD1816A_FMT_STEREO, 253 snd_ad1816a_get_format(chip, runtime->format, 254 runtime->channels)); 255 256 snd_ad1816a_write(chip, AD1816A_PLAYBACK_BASE_COUNT, 257 snd_pcm_lib_period_bytes(substream) / 4 - 1); 258 259 spin_unlock_irqrestore(&chip->lock, flags); 260 return 0; 261 } 262 263 static int snd_ad1816a_capture_prepare(struct snd_pcm_substream *substream) 264 { 265 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 266 unsigned long flags; 267 struct snd_pcm_runtime *runtime = substream->runtime; 268 unsigned int size, rate; 269 270 spin_lock_irqsave(&chip->lock, flags); 271 272 chip->c_dma_size = size = snd_pcm_lib_buffer_bytes(substream); 273 snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG, 274 AD1816A_CAPTURE_ENABLE | AD1816A_CAPTURE_PIO, 0x00); 275 276 snd_dma_program(chip->dma2, runtime->dma_addr, size, 277 DMA_MODE_READ | DMA_AUTOINIT); 278 279 rate = runtime->rate; 280 if (chip->clock_freq) 281 rate = (rate * 33000) / chip->clock_freq; 282 snd_ad1816a_write(chip, AD1816A_CAPTURE_SAMPLE_RATE, rate); 283 snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG, 284 AD1816A_FMT_ALL | AD1816A_FMT_STEREO, 285 snd_ad1816a_get_format(chip, runtime->format, 286 runtime->channels)); 287 288 snd_ad1816a_write(chip, AD1816A_CAPTURE_BASE_COUNT, 289 snd_pcm_lib_period_bytes(substream) / 4 - 1); 290 291 spin_unlock_irqrestore(&chip->lock, flags); 292 return 0; 293 } 294 295 296 static snd_pcm_uframes_t snd_ad1816a_playback_pointer(struct snd_pcm_substream *substream) 297 { 298 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 299 size_t ptr; 300 if (!(chip->mode & AD1816A_MODE_PLAYBACK)) 301 return 0; 302 ptr = snd_dma_pointer(chip->dma1, chip->p_dma_size); 303 return bytes_to_frames(substream->runtime, ptr); 304 } 305 306 static snd_pcm_uframes_t snd_ad1816a_capture_pointer(struct snd_pcm_substream *substream) 307 { 308 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 309 size_t ptr; 310 if (!(chip->mode & AD1816A_MODE_CAPTURE)) 311 return 0; 312 ptr = snd_dma_pointer(chip->dma2, chip->c_dma_size); 313 return bytes_to_frames(substream->runtime, ptr); 314 } 315 316 317 static irqreturn_t snd_ad1816a_interrupt(int irq, void *dev_id) 318 { 319 struct snd_ad1816a *chip = dev_id; 320 unsigned char status; 321 322 spin_lock(&chip->lock); 323 status = snd_ad1816a_in(chip, AD1816A_INTERRUPT_STATUS); 324 spin_unlock(&chip->lock); 325 326 if ((status & AD1816A_PLAYBACK_IRQ_PENDING) && chip->playback_substream) 327 snd_pcm_period_elapsed(chip->playback_substream); 328 329 if ((status & AD1816A_CAPTURE_IRQ_PENDING) && chip->capture_substream) 330 snd_pcm_period_elapsed(chip->capture_substream); 331 332 if ((status & AD1816A_TIMER_IRQ_PENDING) && chip->timer) 333 snd_timer_interrupt(chip->timer, chip->timer->sticks); 334 335 spin_lock(&chip->lock); 336 snd_ad1816a_out(chip, AD1816A_INTERRUPT_STATUS, 0x00); 337 spin_unlock(&chip->lock); 338 return IRQ_HANDLED; 339 } 340 341 342 static struct snd_pcm_hardware snd_ad1816a_playback = { 343 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | 344 SNDRV_PCM_INFO_MMAP_VALID), 345 .formats = (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW | 346 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | 347 SNDRV_PCM_FMTBIT_S16_BE), 348 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, 349 .rate_min = 4000, 350 .rate_max = 55200, 351 .channels_min = 1, 352 .channels_max = 2, 353 .buffer_bytes_max = (128*1024), 354 .period_bytes_min = 64, 355 .period_bytes_max = (128*1024), 356 .periods_min = 1, 357 .periods_max = 1024, 358 .fifo_size = 0, 359 }; 360 361 static struct snd_pcm_hardware snd_ad1816a_capture = { 362 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | 363 SNDRV_PCM_INFO_MMAP_VALID), 364 .formats = (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW | 365 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | 366 SNDRV_PCM_FMTBIT_S16_BE), 367 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, 368 .rate_min = 4000, 369 .rate_max = 55200, 370 .channels_min = 1, 371 .channels_max = 2, 372 .buffer_bytes_max = (128*1024), 373 .period_bytes_min = 64, 374 .period_bytes_max = (128*1024), 375 .periods_min = 1, 376 .periods_max = 1024, 377 .fifo_size = 0, 378 }; 379 380 #if 0 /* not used now */ 381 static int snd_ad1816a_timer_close(struct snd_timer *timer) 382 { 383 struct snd_ad1816a *chip = snd_timer_chip(timer); 384 snd_ad1816a_close(chip, AD1816A_MODE_TIMER); 385 return 0; 386 } 387 388 static int snd_ad1816a_timer_open(struct snd_timer *timer) 389 { 390 struct snd_ad1816a *chip = snd_timer_chip(timer); 391 snd_ad1816a_open(chip, AD1816A_MODE_TIMER); 392 return 0; 393 } 394 395 static unsigned long snd_ad1816a_timer_resolution(struct snd_timer *timer) 396 { 397 snd_assert(timer != NULL, return 0); 398 399 return 10000; 400 } 401 402 static int snd_ad1816a_timer_start(struct snd_timer *timer) 403 { 404 unsigned short bits; 405 unsigned long flags; 406 struct snd_ad1816a *chip = snd_timer_chip(timer); 407 spin_lock_irqsave(&chip->lock, flags); 408 bits = snd_ad1816a_read(chip, AD1816A_INTERRUPT_ENABLE); 409 410 if (!(bits & AD1816A_TIMER_ENABLE)) { 411 snd_ad1816a_write(chip, AD1816A_TIMER_BASE_COUNT, 412 timer->sticks & 0xffff); 413 414 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 415 AD1816A_TIMER_ENABLE, 0xffff); 416 } 417 spin_unlock_irqrestore(&chip->lock, flags); 418 return 0; 419 } 420 421 static int snd_ad1816a_timer_stop(struct snd_timer *timer) 422 { 423 unsigned long flags; 424 struct snd_ad1816a *chip = snd_timer_chip(timer); 425 spin_lock_irqsave(&chip->lock, flags); 426 427 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 428 AD1816A_TIMER_ENABLE, 0x0000); 429 430 spin_unlock_irqrestore(&chip->lock, flags); 431 return 0; 432 } 433 434 static struct snd_timer_hardware snd_ad1816a_timer_table = { 435 .flags = SNDRV_TIMER_HW_AUTO, 436 .resolution = 10000, 437 .ticks = 65535, 438 .open = snd_ad1816a_timer_open, 439 .close = snd_ad1816a_timer_close, 440 .c_resolution = snd_ad1816a_timer_resolution, 441 .start = snd_ad1816a_timer_start, 442 .stop = snd_ad1816a_timer_stop, 443 }; 444 #endif /* not used now */ 445 446 447 static int snd_ad1816a_playback_open(struct snd_pcm_substream *substream) 448 { 449 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 450 struct snd_pcm_runtime *runtime = substream->runtime; 451 int error; 452 453 if ((error = snd_ad1816a_open(chip, AD1816A_MODE_PLAYBACK)) < 0) 454 return error; 455 runtime->hw = snd_ad1816a_playback; 456 snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.buffer_bytes_max); 457 snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.period_bytes_max); 458 chip->playback_substream = substream; 459 return 0; 460 } 461 462 static int snd_ad1816a_capture_open(struct snd_pcm_substream *substream) 463 { 464 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 465 struct snd_pcm_runtime *runtime = substream->runtime; 466 int error; 467 468 if ((error = snd_ad1816a_open(chip, AD1816A_MODE_CAPTURE)) < 0) 469 return error; 470 runtime->hw = snd_ad1816a_capture; 471 snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.buffer_bytes_max); 472 snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.period_bytes_max); 473 chip->capture_substream = substream; 474 return 0; 475 } 476 477 static int snd_ad1816a_playback_close(struct snd_pcm_substream *substream) 478 { 479 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 480 481 chip->playback_substream = NULL; 482 snd_ad1816a_close(chip, AD1816A_MODE_PLAYBACK); 483 return 0; 484 } 485 486 static int snd_ad1816a_capture_close(struct snd_pcm_substream *substream) 487 { 488 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 489 490 chip->capture_substream = NULL; 491 snd_ad1816a_close(chip, AD1816A_MODE_CAPTURE); 492 return 0; 493 } 494 495 496 static void __devinit snd_ad1816a_init(struct snd_ad1816a *chip) 497 { 498 unsigned long flags; 499 500 spin_lock_irqsave(&chip->lock, flags); 501 502 snd_ad1816a_out(chip, AD1816A_INTERRUPT_STATUS, 0x00); 503 snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG, 504 AD1816A_PLAYBACK_ENABLE | AD1816A_PLAYBACK_PIO, 0x00); 505 snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG, 506 AD1816A_CAPTURE_ENABLE | AD1816A_CAPTURE_PIO, 0x00); 507 snd_ad1816a_write(chip, AD1816A_INTERRUPT_ENABLE, 0x0000); 508 snd_ad1816a_write_mask(chip, AD1816A_CHIP_CONFIG, 509 AD1816A_CAPTURE_NOT_EQUAL | AD1816A_WSS_ENABLE, 0xffff); 510 snd_ad1816a_write(chip, AD1816A_DSP_CONFIG, 0x0000); 511 snd_ad1816a_write(chip, AD1816A_POWERDOWN_CTRL, 0x0000); 512 513 spin_unlock_irqrestore(&chip->lock, flags); 514 } 515 516 static int __devinit snd_ad1816a_probe(struct snd_ad1816a *chip) 517 { 518 unsigned long flags; 519 520 spin_lock_irqsave(&chip->lock, flags); 521 522 switch (chip->version = snd_ad1816a_read(chip, AD1816A_VERSION_ID)) { 523 case 0: 524 chip->hardware = AD1816A_HW_AD1815; 525 break; 526 case 1: 527 chip->hardware = AD1816A_HW_AD18MAX10; 528 break; 529 case 3: 530 chip->hardware = AD1816A_HW_AD1816A; 531 break; 532 default: 533 chip->hardware = AD1816A_HW_AUTO; 534 } 535 536 spin_unlock_irqrestore(&chip->lock, flags); 537 return 0; 538 } 539 540 static int snd_ad1816a_free(struct snd_ad1816a *chip) 541 { 542 release_and_free_resource(chip->res_port); 543 if (chip->irq >= 0) 544 free_irq(chip->irq, (void *) chip); 545 if (chip->dma1 >= 0) { 546 snd_dma_disable(chip->dma1); 547 free_dma(chip->dma1); 548 } 549 if (chip->dma2 >= 0) { 550 snd_dma_disable(chip->dma2); 551 free_dma(chip->dma2); 552 } 553 kfree(chip); 554 return 0; 555 } 556 557 static int snd_ad1816a_dev_free(struct snd_device *device) 558 { 559 struct snd_ad1816a *chip = device->device_data; 560 return snd_ad1816a_free(chip); 561 } 562 563 static const char __devinit *snd_ad1816a_chip_id(struct snd_ad1816a *chip) 564 { 565 switch (chip->hardware) { 566 case AD1816A_HW_AD1816A: return "AD1816A"; 567 case AD1816A_HW_AD1815: return "AD1815"; 568 case AD1816A_HW_AD18MAX10: return "AD18max10"; 569 default: 570 snd_printk("Unknown chip version %d:%d.\n", 571 chip->version, chip->hardware); 572 return "AD1816A - unknown"; 573 } 574 } 575 576 int __devinit snd_ad1816a_create(struct snd_card *card, 577 unsigned long port, int irq, int dma1, int dma2, 578 struct snd_ad1816a **rchip) 579 { 580 static struct snd_device_ops ops = { 581 .dev_free = snd_ad1816a_dev_free, 582 }; 583 int error; 584 struct snd_ad1816a *chip; 585 586 *rchip = NULL; 587 588 chip = kzalloc(sizeof(*chip), GFP_KERNEL); 589 if (chip == NULL) 590 return -ENOMEM; 591 chip->irq = -1; 592 chip->dma1 = -1; 593 chip->dma2 = -1; 594 595 if ((chip->res_port = request_region(port, 16, "AD1816A")) == NULL) { 596 snd_printk(KERN_ERR "ad1816a: can't grab port 0x%lx\n", port); 597 snd_ad1816a_free(chip); 598 return -EBUSY; 599 } 600 if (request_irq(irq, snd_ad1816a_interrupt, IRQF_DISABLED, "AD1816A", (void *) chip)) { 601 snd_printk(KERN_ERR "ad1816a: can't grab IRQ %d\n", irq); 602 snd_ad1816a_free(chip); 603 return -EBUSY; 604 } 605 chip->irq = irq; 606 if (request_dma(dma1, "AD1816A - 1")) { 607 snd_printk(KERN_ERR "ad1816a: can't grab DMA1 %d\n", dma1); 608 snd_ad1816a_free(chip); 609 return -EBUSY; 610 } 611 chip->dma1 = dma1; 612 if (request_dma(dma2, "AD1816A - 2")) { 613 snd_printk(KERN_ERR "ad1816a: can't grab DMA2 %d\n", dma2); 614 snd_ad1816a_free(chip); 615 return -EBUSY; 616 } 617 chip->dma2 = dma2; 618 619 chip->card = card; 620 chip->port = port; 621 spin_lock_init(&chip->lock); 622 623 if ((error = snd_ad1816a_probe(chip))) { 624 snd_ad1816a_free(chip); 625 return error; 626 } 627 628 snd_ad1816a_init(chip); 629 630 /* Register device */ 631 if ((error = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) { 632 snd_ad1816a_free(chip); 633 return error; 634 } 635 636 *rchip = chip; 637 return 0; 638 } 639 640 static struct snd_pcm_ops snd_ad1816a_playback_ops = { 641 .open = snd_ad1816a_playback_open, 642 .close = snd_ad1816a_playback_close, 643 .ioctl = snd_pcm_lib_ioctl, 644 .hw_params = snd_ad1816a_hw_params, 645 .hw_free = snd_ad1816a_hw_free, 646 .prepare = snd_ad1816a_playback_prepare, 647 .trigger = snd_ad1816a_playback_trigger, 648 .pointer = snd_ad1816a_playback_pointer, 649 }; 650 651 static struct snd_pcm_ops snd_ad1816a_capture_ops = { 652 .open = snd_ad1816a_capture_open, 653 .close = snd_ad1816a_capture_close, 654 .ioctl = snd_pcm_lib_ioctl, 655 .hw_params = snd_ad1816a_hw_params, 656 .hw_free = snd_ad1816a_hw_free, 657 .prepare = snd_ad1816a_capture_prepare, 658 .trigger = snd_ad1816a_capture_trigger, 659 .pointer = snd_ad1816a_capture_pointer, 660 }; 661 662 int __devinit snd_ad1816a_pcm(struct snd_ad1816a *chip, int device, struct snd_pcm **rpcm) 663 { 664 int error; 665 struct snd_pcm *pcm; 666 667 if ((error = snd_pcm_new(chip->card, "AD1816A", device, 1, 1, &pcm))) 668 return error; 669 670 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ad1816a_playback_ops); 671 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ad1816a_capture_ops); 672 673 pcm->private_data = chip; 674 pcm->info_flags = (chip->dma1 == chip->dma2 ) ? SNDRV_PCM_INFO_JOINT_DUPLEX : 0; 675 676 strcpy(pcm->name, snd_ad1816a_chip_id(chip)); 677 snd_ad1816a_init(chip); 678 679 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, 680 snd_dma_isa_data(), 681 64*1024, chip->dma1 > 3 || chip->dma2 > 3 ? 128*1024 : 64*1024); 682 683 chip->pcm = pcm; 684 if (rpcm) 685 *rpcm = pcm; 686 return 0; 687 } 688 689 #if 0 /* not used now */ 690 int __devinit snd_ad1816a_timer(struct snd_ad1816a *chip, int device, struct snd_timer **rtimer) 691 { 692 struct snd_timer *timer; 693 struct snd_timer_id tid; 694 int error; 695 696 tid.dev_class = SNDRV_TIMER_CLASS_CARD; 697 tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE; 698 tid.card = chip->card->number; 699 tid.device = device; 700 tid.subdevice = 0; 701 if ((error = snd_timer_new(chip->card, "AD1816A", &tid, &timer)) < 0) 702 return error; 703 strcpy(timer->name, snd_ad1816a_chip_id(chip)); 704 timer->private_data = chip; 705 chip->timer = timer; 706 timer->hw = snd_ad1816a_timer_table; 707 if (rtimer) 708 *rtimer = timer; 709 return 0; 710 } 711 #endif /* not used now */ 712 713 /* 714 * 715 */ 716 717 static int snd_ad1816a_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 718 { 719 static char *texts[8] = { 720 "Line", "Mix", "CD", "Synth", "Video", 721 "Mic", "Phone", 722 }; 723 724 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; 725 uinfo->count = 2; 726 uinfo->value.enumerated.items = 7; 727 if (uinfo->value.enumerated.item > 6) 728 uinfo->value.enumerated.item = 6; 729 strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]); 730 return 0; 731 } 732 733 static int snd_ad1816a_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 734 { 735 struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol); 736 unsigned long flags; 737 unsigned short val; 738 739 spin_lock_irqsave(&chip->lock, flags); 740 val = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL); 741 spin_unlock_irqrestore(&chip->lock, flags); 742 ucontrol->value.enumerated.item[0] = (val >> 12) & 7; 743 ucontrol->value.enumerated.item[1] = (val >> 4) & 7; 744 return 0; 745 } 746 747 static int snd_ad1816a_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 748 { 749 struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol); 750 unsigned long flags; 751 unsigned short val; 752 int change; 753 754 if (ucontrol->value.enumerated.item[0] > 6 || 755 ucontrol->value.enumerated.item[1] > 6) 756 return -EINVAL; 757 val = (ucontrol->value.enumerated.item[0] << 12) | 758 (ucontrol->value.enumerated.item[1] << 4); 759 spin_lock_irqsave(&chip->lock, flags); 760 change = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL) != val; 761 snd_ad1816a_write(chip, AD1816A_ADC_SOURCE_SEL, val); 762 spin_unlock_irqrestore(&chip->lock, flags); 763 return change; 764 } 765 766 #define AD1816A_SINGLE_TLV(xname, reg, shift, mask, invert, xtlv) \ 767 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ 768 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \ 769 .name = xname, .info = snd_ad1816a_info_single, \ 770 .get = snd_ad1816a_get_single, .put = snd_ad1816a_put_single, \ 771 .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24), \ 772 .tlv = { .p = (xtlv) } } 773 #define AD1816A_SINGLE(xname, reg, shift, mask, invert) \ 774 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ad1816a_info_single, \ 775 .get = snd_ad1816a_get_single, .put = snd_ad1816a_put_single, \ 776 .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) } 777 778 static int snd_ad1816a_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 779 { 780 int mask = (kcontrol->private_value >> 16) & 0xff; 781 782 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER; 783 uinfo->count = 1; 784 uinfo->value.integer.min = 0; 785 uinfo->value.integer.max = mask; 786 return 0; 787 } 788 789 static int snd_ad1816a_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 790 { 791 struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol); 792 unsigned long flags; 793 int reg = kcontrol->private_value & 0xff; 794 int shift = (kcontrol->private_value >> 8) & 0xff; 795 int mask = (kcontrol->private_value >> 16) & 0xff; 796 int invert = (kcontrol->private_value >> 24) & 0xff; 797 798 spin_lock_irqsave(&chip->lock, flags); 799 ucontrol->value.integer.value[0] = (snd_ad1816a_read(chip, reg) >> shift) & mask; 800 spin_unlock_irqrestore(&chip->lock, flags); 801 if (invert) 802 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0]; 803 return 0; 804 } 805 806 static int snd_ad1816a_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 807 { 808 struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol); 809 unsigned long flags; 810 int reg = kcontrol->private_value & 0xff; 811 int shift = (kcontrol->private_value >> 8) & 0xff; 812 int mask = (kcontrol->private_value >> 16) & 0xff; 813 int invert = (kcontrol->private_value >> 24) & 0xff; 814 int change; 815 unsigned short old_val, val; 816 817 val = (ucontrol->value.integer.value[0] & mask); 818 if (invert) 819 val = mask - val; 820 val <<= shift; 821 spin_lock_irqsave(&chip->lock, flags); 822 old_val = snd_ad1816a_read(chip, reg); 823 val = (old_val & ~(mask << shift)) | val; 824 change = val != old_val; 825 snd_ad1816a_write(chip, reg, val); 826 spin_unlock_irqrestore(&chip->lock, flags); 827 return change; 828 } 829 830 #define AD1816A_DOUBLE_TLV(xname, reg, shift_left, shift_right, mask, invert, xtlv) \ 831 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ 832 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \ 833 .name = xname, .info = snd_ad1816a_info_double, \ 834 .get = snd_ad1816a_get_double, .put = snd_ad1816a_put_double, \ 835 .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24), \ 836 .tlv = { .p = (xtlv) } } 837 838 #define AD1816A_DOUBLE(xname, reg, shift_left, shift_right, mask, invert) \ 839 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ad1816a_info_double, \ 840 .get = snd_ad1816a_get_double, .put = snd_ad1816a_put_double, \ 841 .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24) } 842 843 static int snd_ad1816a_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 844 { 845 int mask = (kcontrol->private_value >> 16) & 0xff; 846 847 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER; 848 uinfo->count = 2; 849 uinfo->value.integer.min = 0; 850 uinfo->value.integer.max = mask; 851 return 0; 852 } 853 854 static int snd_ad1816a_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 855 { 856 struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol); 857 unsigned long flags; 858 int reg = kcontrol->private_value & 0xff; 859 int shift_left = (kcontrol->private_value >> 8) & 0x0f; 860 int shift_right = (kcontrol->private_value >> 12) & 0x0f; 861 int mask = (kcontrol->private_value >> 16) & 0xff; 862 int invert = (kcontrol->private_value >> 24) & 0xff; 863 unsigned short val; 864 865 spin_lock_irqsave(&chip->lock, flags); 866 val = snd_ad1816a_read(chip, reg); 867 ucontrol->value.integer.value[0] = (val >> shift_left) & mask; 868 ucontrol->value.integer.value[1] = (val >> shift_right) & mask; 869 spin_unlock_irqrestore(&chip->lock, flags); 870 if (invert) { 871 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0]; 872 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1]; 873 } 874 return 0; 875 } 876 877 static int snd_ad1816a_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 878 { 879 struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol); 880 unsigned long flags; 881 int reg = kcontrol->private_value & 0xff; 882 int shift_left = (kcontrol->private_value >> 8) & 0x0f; 883 int shift_right = (kcontrol->private_value >> 12) & 0x0f; 884 int mask = (kcontrol->private_value >> 16) & 0xff; 885 int invert = (kcontrol->private_value >> 24) & 0xff; 886 int change; 887 unsigned short old_val, val1, val2; 888 889 val1 = ucontrol->value.integer.value[0] & mask; 890 val2 = ucontrol->value.integer.value[1] & mask; 891 if (invert) { 892 val1 = mask - val1; 893 val2 = mask - val2; 894 } 895 val1 <<= shift_left; 896 val2 <<= shift_right; 897 spin_lock_irqsave(&chip->lock, flags); 898 old_val = snd_ad1816a_read(chip, reg); 899 val1 = (old_val & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2; 900 change = val1 != old_val; 901 snd_ad1816a_write(chip, reg, val1); 902 spin_unlock_irqrestore(&chip->lock, flags); 903 return change; 904 } 905 906 static const DECLARE_TLV_DB_SCALE(db_scale_4bit, -4500, 300, 0); 907 static const DECLARE_TLV_DB_SCALE(db_scale_5bit, -4650, 150, 0); 908 static const DECLARE_TLV_DB_SCALE(db_scale_6bit, -9450, 150, 0); 909 static const DECLARE_TLV_DB_SCALE(db_scale_5bit_12db_max, -3450, 150, 0); 910 static const DECLARE_TLV_DB_SCALE(db_scale_rec_gain, 0, 150, 0); 911 912 static struct snd_kcontrol_new snd_ad1816a_controls[] __devinitdata = { 913 AD1816A_DOUBLE("Master Playback Switch", AD1816A_MASTER_ATT, 15, 7, 1, 1), 914 AD1816A_DOUBLE_TLV("Master Playback Volume", AD1816A_MASTER_ATT, 8, 0, 31, 1, 915 db_scale_5bit), 916 AD1816A_DOUBLE("PCM Playback Switch", AD1816A_VOICE_ATT, 15, 7, 1, 1), 917 AD1816A_DOUBLE_TLV("PCM Playback Volume", AD1816A_VOICE_ATT, 8, 0, 63, 1, 918 db_scale_6bit), 919 AD1816A_DOUBLE("Line Playback Switch", AD1816A_LINE_GAIN_ATT, 15, 7, 1, 1), 920 AD1816A_DOUBLE_TLV("Line Playback Volume", AD1816A_LINE_GAIN_ATT, 8, 0, 31, 1, 921 db_scale_5bit_12db_max), 922 AD1816A_DOUBLE("CD Playback Switch", AD1816A_CD_GAIN_ATT, 15, 7, 1, 1), 923 AD1816A_DOUBLE_TLV("CD Playback Volume", AD1816A_CD_GAIN_ATT, 8, 0, 31, 1, 924 db_scale_5bit_12db_max), 925 AD1816A_DOUBLE("Synth Playback Switch", AD1816A_SYNTH_GAIN_ATT, 15, 7, 1, 1), 926 AD1816A_DOUBLE_TLV("Synth Playback Volume", AD1816A_SYNTH_GAIN_ATT, 8, 0, 31, 1, 927 db_scale_5bit_12db_max), 928 AD1816A_DOUBLE("FM Playback Switch", AD1816A_FM_ATT, 15, 7, 1, 1), 929 AD1816A_DOUBLE_TLV("FM Playback Volume", AD1816A_FM_ATT, 8, 0, 63, 1, 930 db_scale_6bit), 931 AD1816A_SINGLE("Mic Playback Switch", AD1816A_MIC_GAIN_ATT, 15, 1, 1), 932 AD1816A_SINGLE_TLV("Mic Playback Volume", AD1816A_MIC_GAIN_ATT, 8, 31, 1, 933 db_scale_5bit_12db_max), 934 AD1816A_SINGLE("Mic Boost", AD1816A_MIC_GAIN_ATT, 14, 1, 0), 935 AD1816A_DOUBLE("Video Playback Switch", AD1816A_VID_GAIN_ATT, 15, 7, 1, 1), 936 AD1816A_DOUBLE_TLV("Video Playback Volume", AD1816A_VID_GAIN_ATT, 8, 0, 31, 1, 937 db_scale_5bit_12db_max), 938 AD1816A_SINGLE("Phone Capture Switch", AD1816A_PHONE_IN_GAIN_ATT, 15, 1, 1), 939 AD1816A_SINGLE_TLV("Phone Capture Volume", AD1816A_PHONE_IN_GAIN_ATT, 0, 15, 1, 940 db_scale_4bit), 941 AD1816A_SINGLE("Phone Playback Switch", AD1816A_PHONE_OUT_ATT, 7, 1, 1), 942 AD1816A_SINGLE_TLV("Phone Playback Volume", AD1816A_PHONE_OUT_ATT, 0, 31, 1, 943 db_scale_5bit), 944 { 945 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 946 .name = "Capture Source", 947 .info = snd_ad1816a_info_mux, 948 .get = snd_ad1816a_get_mux, 949 .put = snd_ad1816a_put_mux, 950 }, 951 AD1816A_DOUBLE("Capture Switch", AD1816A_ADC_PGA, 15, 7, 1, 1), 952 AD1816A_DOUBLE_TLV("Capture Volume", AD1816A_ADC_PGA, 8, 0, 15, 0, 953 db_scale_rec_gain), 954 AD1816A_SINGLE("3D Control - Switch", AD1816A_3D_PHAT_CTRL, 15, 1, 1), 955 AD1816A_SINGLE("3D Control - Level", AD1816A_3D_PHAT_CTRL, 0, 15, 0), 956 }; 957 958 int __devinit snd_ad1816a_mixer(struct snd_ad1816a *chip) 959 { 960 struct snd_card *card; 961 unsigned int idx; 962 int err; 963 964 snd_assert(chip != NULL && chip->card != NULL, return -EINVAL); 965 966 card = chip->card; 967 968 strcpy(card->mixername, snd_ad1816a_chip_id(chip)); 969 970 for (idx = 0; idx < ARRAY_SIZE(snd_ad1816a_controls); idx++) { 971 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_ad1816a_controls[idx], chip))) < 0) 972 return err; 973 } 974 return 0; 975 } 976